The latest from Gigabyte's "New Idea" Tech Tour is the WindForce 450 W cooler, which was demonstrated on an Nvidia GTX Titan and GTX 680 at an event held in Berlin, Germany. As the name suggests, it is advertised as having a gargantuan TDP of 450 W.
The WindForce 450 W is a triple slot graphics card cooler which features a dual aluminum fin stack design, three 10 mm copper heat pipes and is ventilated by three 80 mm cooling fans. When fitted to GTX 680, this cooler was able to operate 2°C cooler and 28.3 dB quieter than a "traditional" cooler while running an unspecified FurMark benchmark. On a GTX Titan, Gigabyte states that it "works to provide higher GPU Boost frequencies or helps sustain set frequency offsets better."
Gigabyte did not reveal when or if the WindForce 450 W cooler would appear on a retail graphics card.